Large Group Decision Making with Multiple Criteria

Usually in real problems there are several objectives which can each be used for choosing an “optimal” feasible decision by solving a suitable programming problem. In the case of one decision maker there are two open courses: to choose one of the potential objectives as the objective function and, perhaps, use others in the restrictions; or to use one of the procedures which in one way or another attempt to cope with decision making with multiple objective functions. See for an excellent review of such methods ROY [10].